Results 51 to 60 of about 1,261 (155)

A SPH Model Bridging Solid‐ and Fluid‐Like Behaviour in Granular Materials

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 49, Issue 2, Page 738-755, 10 February 2025.
ABSTRACT We propose a smoothed particle hydrodynamics (SPH) model bridging the gap between solid‐ and fluid‐like behaviour observed in granular materials. The key innovation of the proposed approach lies in the decomposition of the stress gradient into rate‐independent and rate‐dependent parts, which are governed by the hypoplastic and μ(I)$\mu (I ...
Yadong Wang, Wei Wu
wiley   +1 more source

Discontinuous Deformation Analysis Based on Wachspress Interpolation Function for Detailed Stress Distribution

Mathematical Problems in Engineering, Volume 2018, Issue 1, 2018., 2018
In the original discontinuous deformation analysis (DDA) method, the complete first‐order displacement function is used to describe block movement and deformation, which induce constant stress and strain throughout the block. To achieve a more detailed stress distribution, Wachspress interpolation displacement function is employed to express the ...
W. Jiang, Y. H. Wang, G. H. Sun, P. C. Song, C. Mao, Petr Krysl   +5 more
wiley   +1 more source

Evaluation of cut slope stability in the Lesser Himalaya of Nepal

Geologija
A spatial inventory of cut slopes in the central and western Lesser Himalaya of Nepal was prepared and characterised to evaluate their stability. The stability of these cut slopes is governed by the geotechnical properties of rock/soil together with ...
Krishna Kumar Shrestha, Kabi Raj Paudyal, Dinesh Pathak, Alessandro Franci, Prem Bahadur Thapa   +4 more
doaj   +1 more source

Pressure measurement in 2D sloshing simulations with SPH [PDF]

, 2007
Sloshing for low filling level resonant pitch motion is studied experimentally and numerically using SPH. Special attention is paid to the pressure fields on the tanks.
Celigueta Jordana, Miguel Ángel, Delorme, L, Oñate Ibáñez de Navarra, Eugenio, Souto Iglesias, Antonio   +3 more
core  

Lagrangian finite element model for the 3D simulation of glass forming processes [PDF]

, 2016
We propose here a numerical model for a three-dimensional simulation of glass forming processes. Using the basic philosophy of the Particle Finite Element method (PFEM), we introduce several new features adapting the strategy to suit the problem of ...
García Espinosa, Julio, Oñate Ibáñez de Navarra, Eugenio, Ryzhakov, Pavel   +2 more
core   +3 more sources

Numerical simulation of undrained insertion problems in geotechnical engineering with the Particle Finite Element Method (PFEM) [PDF]

Computers and Geotechnics, 2017
The paper presents total-stress numerical analyses of large-displacement soil-structure interaction problems in geomechanics using the Particle Finite Element Method (PFEM). This method is characterized by frequent remeshing and the use of low order finite elements to evaluate the solution.
Monforte Vila, Lluís, Arroyo Álvarez de Toledo, Marcos, Carbonell Puigbó, Josep Maria, Gens Solé, Antonio   +3 more
openaire   +4 more sources

Fracture Analysis of 316L Specimens Fabricated via Material Extrusion Additive Manufacturing: Influence of Building Orientation and Notch Acuity

Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 1, Page 511-530, January 2025.
ABSTRACT Three‐point bending tests were performed on notched specimens extracted from cuboids of 316L stainless steel produced via material extrusion additive manufacturing. The cuboids were printed vertically and horizontally on the printing platform to account for the building orientation effect on the mechanical performance.
Saveria Spiller, Sara Couto, Nima Razavi
wiley   +1 more source

Velocity-based formulations for standard and quasi-incompressible hypoelastic-plastic solids [PDF]

, 2016
This is the accepted version of the following article: [Franci, A., Oñate, E., and Carbonell, J. M. (2016) Velocity-based formulations for standard and quasi-incompressible hypoelastic-plastic solids. Int. J. Numer. Meth. Engng, 107: 970–990.
Bathe, Becker, Belytschko, Belytschko, Bishoff, Bonet, Brepols, Brezzi, Cervera, Cook, De Souza Neto, Firat, Franci, Franci, Gil, Goon, Haddag, Idelsohn, Johnson, Nagtegaal, Oñate, Oñate, Oñate, Prager, Romero, Ryzhakov, Ryzhakov, Simo, Simo, Simo, Skrzypek, Truesdell, Truesdell, Zienkiewicz, Zienkiewicz   +34 more
core   +3 more sources

A two‐phase volume of fluid approach to model rigid‐perfectly plastic granular materials

International Journal for Numerical Methods in Fluids, Volume 96, Issue 12, Page 1813-1829, December 2024.
A rigid‐perfectly plastic Bingham model is presented, and its implementation into an FV‐VoF procedure is validated for cohesive and noncohesive materials featuring different angles of repose. A close agreement of the predicted soil surface with experimental data is obtained for noncohesive material, and the failure lines, calculated from the introduced
W. Düsterhöft‐Wriggers, S. Schubert, T. Rung   +2 more
wiley   +1 more source

Numerical modelling of landslide-generated waves with the particle finite element method (PFEM) and a non-Newtonian flow model [PDF]

International Journal for Numerical and Analytical Methods in Geomechanics, 2015
Landslide-generated impulse waves may have catastrophic consequences. The physical phenomenon is difficult to model because of the uncertainties in the kinematics of the mobilised material and to the intrinsic complexity of the fluid–soil interaction. The particle finite element method (PFEM) is a numerical scheme that has successfully been applied to ...
Salazar González, Fernando, Irazábal González, Joaquín, Larese De Tetto, Antonia, Oñate Ibáñez de Navarra, Eugenio   +3 more
openaire   +6 more sources